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W. B. MACKENZIE. Cooking Stove.

No. 106,946. Patented Aug. 30,1870.

Illhillll Hesi.

WILLIAM B. MACKENZIE, OF CINCINNATI, OHIO.

Letters Pate-nt No. 106,946, dated August 30, 1870.

. I t I. l

COOKING-STOVE.

The- Schedule referred to in these Letters Patent 4and. making part of the same.

To all whom, it may concern;

Be it known that I, WILLIAM B. MAcKENz-IE, of Cincinnati, Hamilton county, State of Ohio, have invented certain new and useful Improvements in Cooking-Stoves; and I do hereby declare the following `to be a sufficiently full, clear, and exact description thereof Ato enable one skilled in the art to which.my invention appertains to make and use it, reference being had to the accompanying dra-wing making part ot' this spccication.

Natztre and Objects of Invention.

My inventionA consists in a peculiar arrangement of the iiues anddampers of the stove, by which the central due, usually the ascending flue in stoves of this class, is made the diving 7 flue, and, by a certain dispositionland arrangement of the tlue partitions under the oven, the side iiues are used as the ascending ues, the object of my invention being to separate the heated currents on the exit from the stove, so that two currents will impinge upon the bottom of the waterboiler, one at- -each end,v and also to eiect a more equable distribution of the heat under the oven.

Description of Accompanying Drawing. Figure 1 is a perspective view of the stove from the rear, the rear plate being removed, in order to clearly exhibit the interior of the end iiues.

Figure 2 is a plan of the top. p Figure 3 is a plan of the bottom, with the bottoni i plate removed, showing the arrangement of partitions.

Gen-eral Description.

bottom plate of the stove is divided by partition plates' A A' and plate E into four lues, F E', and GG.

'lhe plate E serves to divide the current from flue B into two parts, and conducts it in the divided state to the forward end ofthe stove, where itis conducted" to the fines G G. This plate may extendthe full length of the ho` tomv plate, as shown in fig. 3, or part of the full lengt only, if preferred.`

The top of the tine B is inclosed by cap b, which may have an opening, b. 'This opening should be l closed by a suitable cover when the current ot' heated gases is passing under the oven.

The customary waterboiler is tted to the opening H, and, it will be seen that, when the current of heat emerges from the stove, after passing under the oven,

it is divided into two parts, and it'theret'ore impinges upon the two ends ofv the boiler,'and, being brought together again by having to escape at a single stovepipe, I, theheat is distributed equally over the entire surface of the boiler.

In order that the dame may be permitted to escapo directly up the stove-pipe when the oven is not 'needed, I provide the two damper plates J J", whichare hinged ncar the back plate of the oven, and operated simultaneouslyby handle K. When these dampers are open, the flame can pass directly up the chimney, being compelled, however, to impingeupon both ends of the boiler in the same manner as when the flame passes under the oven.

When the dampers are open, the cap or cover over thehole b' can be removed, to aiord a still freer exit for the dame, and enable it to impinge directly upon` the center of the bottom of the boiler.

The peculiar arrangement of flues under the'oven causes the heat to be more equally radiated over the surface to be heated, than when the central tlues are used for the. ascent of the current-.-

Claim.;

The combination and arrangement of the central opening D. side openings D D', double-winged dampers J J', with reference to the openingH, and central diving-flue B, divided line F F' E, tlues G G', and ascending side dues C C', vsubstantially as set forth.'

In testimony of which invention I hereunto set my hand. t

. WM. B. MACKENZIE.

Witnesses FRANK MILLWARD, J. L. WARTMANN. 

